It would not be a good use for Blockchain technology. Besides the problem that your dollars are a fungible asset that don't have a physical object associated with it, as soon as you dollars get converted to another state, account, entity, whatever along with another thousands people's dollars you would lose the tracking. And ultimately even if you could achieve this it would then either all fall to one or two accounts so you would have the disheartening effect of seeing your entire annual contribution spent on something tedious like fuelling an aircraft carrier, or they would attempt to distribute it evenly in which case why not save all the effort and just track the average spend budgets? It's a solution looking for a problem here.